大鱼吃小鱼c++代码

以下是一个使用EasyX库实现的大鱼吃小鱼游戏的C++代码示例：

#include <graphics.h>
#include <conio.h>
#include <time.h>
#include <stdlib.h>
#include <stdio.h>

#define MAX_FISH 20
#define MAX_SHARK 3

IMAGE bg, fish[4], shark[4];
int fish_x[MAX_FISH], fish_y[MAX_FISH], fish_kind[MAX_FISH], fish_speed[MAX_FISH];
int shark_x[MAX_SHARK], shark_y[MAX_SHARK], shark_kind[MAX_SHARK], shark_speed[MAX_SHARK];
int score = 0;

void init();
void show();
void updateWithoutInput();
void updateWithInput();
bool isCollide(int x1, int y1, int w1, int h1, int x2, int y2, int w2, int h2);

int main()
{
    init();
    while (true)
    {
        show();
        updateWithoutInput();
        updateWithInput();
    }
    return 0;
}

void init()
{
    srand((unsigned)time(NULL));
    initgraph(640, 480);
    loadimage(&bg, _T("bg.jpg"));
    loadimage(&fish[0], _T("fish1.png"));
    loadimage(&fish[1], _T("fish2.png"));
    loadimage(&fish[2], _T("fish3.png"));
    loadimage(&fish[3], _T("fish4.png"));
    loadimage(&shark[0], _T("shark1.png"));
    loadimage(&shark[1], _T("shark2.png"));
    loadimage(&shark[2], _T("shark3.png"));
    loadimage(&shark[3], _T("shark4.png"));
    for (int i = 0; i < MAX_FISH; i++)
    {
        fish_x[i] = rand() % 540 + 50;
        fish_y[i] = rand() % 380 + 50;
        fish_kind[i] = rand() % 4;
        fish_speed[i] = rand() % 4 + 1;
    }
    for (int i = 0; i < MAX_SHARK; i++)
    {
        shark_x[i] = rand() % 540 + 50;
        shark_y[i] = rand() % 380 + 50;
        shark_kind[i] = rand() % 4;
        shark_speed[i] = rand() % 4 + 1;
    }
}

void show()
{
    putimage(0, 0, &bg);
    for (int i = 0; i < MAX_FISH; i++)
    {
        putimage(fish_x[i], fish_y[i], &fish[fish_kind[i]]);
    }
    for (int i = 0; i < MAX_SHARK; i++)
    {
        putimage(shark_x[i], shark_y[i], &shark[shark_kind[i]]);
    }
    settextcolor(WHITE);
    settextstyle(20, 0, _T("宋体"));
    TCHAR s[100];
    _stprintf_s(s, _T("得分：%d"), score);
    outtextxy(10, 10, s);
}

void updateWithoutInput()
{
    for (int i = 0; i < MAX_FISH; i++)
    {
        fish_x[i] += fish_speed[i];
        if (fish_x[i] > 640)
        {
            fish_x[i] = -fish[i].getwidth();
            fish_y[i] = rand() % 380 + 50;
            fish_kind[i] = rand() % 4;
            fish_speed[i] = rand() % 4 + 1;
        }
    }
    for (int i = 0; i < MAX_SHARK; i++)
    {
        shark_x[i] += shark_speed[i];
        if (shark_x[i] > 640)
        {
            shark_x[i] = -shark[i].getwidth();
            shark_y[i] = rand() % 380 + 50;
            shark_kind[i] = rand() % 4;
            shark_speed[i] = rand() % 4 + 1;
        }
    }
}

void updateWithInput()
{
    if (_kbhit())
    {
        char ch = _getch();
        if (ch == ' ')
        {
            for (int i = 0; i < MAX_FISH; i++)
            {
                if (isCollide(fish_x[i], fish_y[i], fish[fish_kind[i]].getwidth(), fish[fish_kind[i]].getheight(),
                    320, 240, shark[shark_kind[0]].getwidth(), shark[shark_kind[0]].getheight()))
                {
                    score++;
                    fish_x[i] = -fish[fish_kind[i]].getwidth();
                    fish_y[i] = rand() % 380 + 50;
                    fish_kind[i] = rand() % 4;
                    fish_speed[i] = rand() % 4 + 1;
                }
            }
        }
    }
    for (int i = 0; i < MAX_SHARK; i++)
    {
        if (isCollide(shark_x[i], shark_y[i], shark[shark_kind[i]].getwidth(), shark[shark_kind[i]].getheight(),
            320, 240, shark[shark_kind[0]].getwidth(), shark[shark_kind[0]].getheight()))
        {
            score = 0;
            break;
        }
    }
}

bool isCollide(int x1, int y1, int w1, int h1, int x2, int y2, int w2, int h2)
{
    if (x1 + w1 < x2 || x1 > x2 + w2 || y1 + h1 < y2 || y1 > y2 + h2)
    {
        return false;
    }
    return true;
}

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